28391420

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{6199}}^1$

素因数の和:6437

約数の個数: 24

約数和(自身を含む): 59892000

約数和(自身を除く): 31500580

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4580, 6199, 12398, 24796, 30995, 61990, 123980, 1419571, 2839142, 5678284, 7097855, 14195710, 28391420]

約数ペア:

[(1, 28391420), (2, 14195710), (4, 7097855), (5, 5678284), (10, 2839142), (20, 1419571), (229, 123980), (458, 61990), (916, 30995), (1145, 24796), (2290, 12398), (4580, 6199)]